“侵略国”的英语？

帝国主义侵略者总是向被侵略国施展他们的炮舰外交.Imperialistic aggressors always use gunboat diplomacy to invade countries.那个侵略国看起来是个庞然大物, 其实是纸老虎.That Aggressor State , which looks like a huge monster, is in essence a paper tiger....